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Tue, 9 Jun 2026 23:33:57 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 295957] fusefs: panic: cached attrs not locked when executing fuse-mounted file Date: Tue, 09 Jun 2026 23:33:57 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: asomers@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: asomers@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status assigned_to Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D295957 Alan Somers changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Open Assignee|bugs@FreeBSD.org |asomers@FreeBSD.org --- Comment #1 from Alan Somers --- I just encountered this myself. And I can provide easier steps to reproduc= e.=20 The bug was probably introduced by 7e68af7ce2c1b892954df415774fe59fd2f1b62f= , which means that it does not affect 15.0-RELEASE, but will affect 15.1-RELE= ASE. However, it only affects INVARIANTS kernels, so the regular GENERIC 15.1-RELEASE kernel is unaffected. Steps to Reproduce =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Attempt to execute any file stored on a fusefs file system, with INVARIANTS enabled in the kernel:. For example: $ sudo pkg install -y e2fsprogs-core fusefs-ext2 $ truncate -s 256m /tmp/ext2.img $ mkfs.ext2 /tmp/ext2.img $ sudo fuse-ext2 -o rw+ /tmp/ext2.img /mnt $ sudo mkdir /mnt/tmp $ chmod 1777 /mnt/tmp $ cp /usr/bin/true /mnt/tmp /usr/bin/true --=20 You are receiving this mail because: You are the assignee for the bug.=